The General Dynamics M1 Abrams is the U.S. Army's main battle tank. The tank is powered by a single Honeywell AGT1500 gas turbine engine with 1,500 hp. The M1, named after General Creighton Abrams,first entered service in 1980 and was produced for the U.S. Army from 1978 until 1992. The M1A1 entered production in 1985 followed by the the M1A2 in 1986. During operation Desert Storm, 2,000 M1 Abrams tanks were used. The M1 proved vastly superior and not a single tank was destroyed by enemy fire.